Abstract:
The present invention concerns methods and compositions for improving viability and transgene expression in transfected cells. In one embodiment, the present invention provides a method for increasing the viability of a transfected cell, the method comprising: transfecting a cell with a nucleic acid sequence; and contacting the transfected cell with a nuclease in a manner effective to enhance the viability of the transfected cell.
Abstract:
Devices, systems, and methods reduce levels of pro-inflammatory or anti-inflammatory stimulators or mediators in blood by selective adsorption. The devices, systems, and methods are useful in situations where abnormal levels of or unregulated or excessive interaction among pro-inflammatory or anti-inflammatory stimulators or mediators occur, or during events that do induce or have the potential for inducing abnormal production of pro-inflammatory or anti-inflammatory stimulators or mediators. The devices, systems, and methods serve to prevent, control, reduce, or alleviate the severity of the inflammatory response and disease states that are associated with abnormal levels of or unregulated or excessive interaction among pro-inflammatory or anti-inflammatory stimulators or mediators.
Abstract:
A device and method for accessing a row of data in a semiconductor memory device in a single operation is disclosed. The device includes a row of latches having a width which matches the width of the memory array in the semiconductor memory device. The device includes precharge and equilibration circuitry associated with the row of latches and the row of sense amplifiers in device, and timing circuitry for controlling the operation of each in performing full page read and write operations. Writing a full row of data from the row of latches into a selected row of memory cells includes the steps of disconnecting the row of sense amplifiers from the reference voltage sources; equalizing voltage levels appearing on the bit lines of the semiconductor memory and the sense amplifiers; connecting a row of memory cells to the bit lines; driving at least one bit line of each pair of bit lines to a voltage level representing the data value stored in the corresponding latch; coupling the sense amplifiers to the reference voltage sources for powering the sense amplifiers; and disconnecting the row of memory cells from the bit lines.
Abstract:
A technique for testing wordline and related circuitry of a memory array is disclosed. The memory array includes a plurality of memory cells arranged in a plurality of rows, wherein each of the plurality of rows has a respective wordline connected to respective ones of the plurality of memory cells. The related circuitry includes a decode circuit connected to each of the respective wordlines for activating at least one of the respective wordlines based upon a corresponding address signal that is decoded by the decode circuit. The technique involves applying an address signal to the decode circuit so as to activate a corresponding one of the respective wordlines, and then monitoring the corresponding one of the respective wordlines so as to determine if the corresponding one of the respective wordlines has been activated and thereby determine if the memory array and related circuitry are operating in a proper manner.
Abstract:
A battery backed-up semiconductor device employs a Vss switching configuration to provide uninterrupted battery power to critical circuitry of the device even in the event of external conditions, such as undershoot, that threaten to corrupt data stored by the device. Both primary power and battery power, when needed, are supplied to floating wells of the device rather than to the device substrate, making the device immune to undershoots that can short the battery to the device substrate and corrupt data stored by the device. The device substrate is permanently tied to the positive power supply voltage and the positive terminal of the battery voltage and is therefore not subject to the concerns associated with switching from a failed primary power supply to the back-up battery power supply.
Abstract:
A dynamic random access memory (DRAM) circuit is provided that utilizes a testing system and method to determine the sensitivity of a sense amplifier. More specifically, the DRAM circuit, in determining the sensitivity of the sense amplifier, utilizes a testing system to independently control the magnitude of a voltage differential appearing between a pair of bit lines and sensed by the sense amplifier. The sensitivity of the sense amplifier is then able to be determined by monitoring an input/output signal in response to sensing the known voltage differential. The testing system controls the magnitude of the voltage differential appearing between the bit lines by enabling a first dummy cell to transfer a first reference charge onto a first bit line and by enabling a second dummy cell to transfer a second reference charge onto a second bit line.
Abstract:
An anti-backoff screw cap construction for a container neck having a thread with a downwardly-facing pressure face and an upwardly-facing relief face. The cap has a depending skirt having an internal thread with an upwardly-facing pressure face for engagement with the downwardly-facing pressure face of the container neck thread. Engagement results in tightening of the cap on the container neck when the cap is turned in a screwing-on direction. The cap thread has a downwardly-facing relief face having as an anti-backoff structure, an elongate, substantially helical, resilient projecting bead which is integral with the cap thread, the bead being coextensive with an uppermost portion of its downwardly-facing relief face and being directly engageable by the upwardly-facing relief face of the container neck thread. The projecting bead is resiliently deformed by its engagement with the upwardly-facing relief face of the container neck thread when the cap is turned in its screwing-on direction. The deformed projecting bead elastically and frictionally grips the upwardly-facing relief face of the container neck thread so as to reduce the tendency for the cap to become inadvertently unscrewed from its fully screwed-on position. A highly effective retention of the cap results, without the need for complex molded locking lugs, teeth or the like.
Abstract:
A memory is disclosed having a plurality of memory cells in a memory array arranged in rows and columns, each of the memory cells capable of storing a logic state therein. Each pair of bit lines is associated with one of the columns. A column decoder selects a column in the array responsive to a column address. A plurality of word line drivers selects, in response to a row address, a row of memory cells for connection with their associated pair of bit lines. A plurality of row isolation circuits isolates and enables a selected group of memory cells of each row from the remainder of the row in response to a bulk write signal. Each row isolation circuit has a conduction path between its associated word line driver and the selected memory cells in the associated row. A bulk write signal is sent to each column containing the selected memory cells. A first logic state is then written into the selected memory cells in response to the bulk write signal.
Abstract:
A contact structure provides electrical contact between two polycrystalline silicon interconnect layers. The lower layer has a silicide layer on its upper surface. The upper polycrystalline silicon layer can be doped with a different conductivity type, and makes an ohmic contact with the silicided region of the lower polycrystalline silicon layer.
Abstract:
A method for presenting tailored content to a user, comprising: presenting a central coordinating interface to a client; Generating a portion of client specific computer code, including a unique site identification token for a client site and at least one operating parameter; Integrating the client specific computer code into the client site, serving at least one user the client site having integrated client specific computer code therein and giving the option to download an end-user application; Sending a request with at least one request parameter when a user selects to download the end-user application; Processing the request parameters and the operating parameters to dynamically generate an end-user application; providing the end-user application to the user, which presents tailored content to the user according to at least one of detail, request parameter and operating parameter.